San Diego, CA — The enactment of statewide legislation permitting medical cannabis access by qualified patients is associated with a reduction in opioid-related hospitalization, according to data published online ahead of print in the journal Drug and Alcohol Dependence.

A researcher from the University of California at San Diego assessed the association between medical cannabis laws and hospitalizations related to opioid pain relievers. The author reported both immediate and longer-term reductions in opioid-related hospitalization following changes in law.

“This study demonstrated significant reductions on OPR- (opioid pain reliever) related hospitalizations associated with the implementation of medical marijuana policies. … We found reductions in OPR-related hospitalizations immediately after the year of policy implementation as well as delayed reductions in the third post-policy year.”

The author also dismissed contentions that liberalized marijuana laws were associated with any subsequent increase in marijuana-related hospital admissions, concluding: “While the interpretation of the results should remain cautious, this study suggested that medical marijuana policies were not associated with marijuana-related hospitalizations. Instead, the policies were unintendedly associated with substantial reductions in OPR related hospitalizations.”